Lixiviation of the nitrogen forms (NO3, NH4+, y NO2) under experimental conditions

The lixiviation of the nitrogen forms of the synthesis fertilisers has been studied in the scientific world in the last years for the environmental repercussions that this processes involve. A lixiviation process controlled with applications of nitrogen fertilisers, in experimental plots has been studied in this work. The sampling process of the lixiviation waters was carried out by means of collection with porous ceramic capsules in different depths. The analysis process was carried out directly in field by means of reflectometry with portable equipment (Reflectoquant). The aim of this work is the analysis of quantitative aspects of the treatments without entering in the modelization of the lixiviation process in the time and in the space. The nitrogen forms NO3, NH4+ and NO2 are studied. As a significant result, it was observed that the lixiviation process is very conditioned by the bacterial processes in the not saturated area profiles of soil